CN113029562A - Detection method and detection device for load state of lead screw transmission mechanism - Google Patents
Detection method and detection device for load state of lead screw transmission mechanism Download PDFInfo
- Publication number
- CN113029562A CN113029562A CN202110287675.9A CN202110287675A CN113029562A CN 113029562 A CN113029562 A CN 113029562A CN 202110287675 A CN202110287675 A CN 202110287675A CN 113029562 A CN113029562 A CN 113029562A
- Authority
- CN
- China
- Prior art keywords
- connecting piece
- screw rod
- torque
- screw
- driving device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 230000002159 abnormal effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims 3
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013211 curve analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of lead screw load rate detection, and particularly discloses a method for detecting the load state of a lead screw transmission mechanism, which comprises the following steps: one end of the screw rod is connected with a connecting piece, and the other end of the connecting piece is connected with a driving device; the connecting piece is driven to rotate by the driving device, the connecting piece drives the screw rod to rotate and move, the torque value of any point can be measured by the measuring type torque wrench in the screw rod moving process, the torque value is collected by the torque meter, the multipoint measurement data is subjected to drawing analysis and is compared with the equipment control parameters, and the position with the abnormal data value is the accurate position of the fault point, so that the fault point is found out. The invention also discloses a detection device, which comprises a connecting piece and a driving device, the change of the torque value is visually seen through a torque meter of the torque wrench, the multipoint measurement data is subjected to drawing analysis and is compared with the equipment control parameters, the fault point can be quickly and accurately found out, and the predictive detection of the transmission fault of the numerical control equipment is realized.
Description
Technical Field
The invention belongs to the technical field of lead screw load rate detection, and particularly discloses a method and a device for detecting the load state of a lead screw transmission mechanism.
Background
At present, the load factor detection technology of a coordinate axis screw transmission device of numerical control equipment is generally implemented by professional technical manufacturers through special software, the detection cost is high, the detection period is long, or a servo axis transmission mechanism is detected through a special instrument, the special instrument needs to be used by professionals, the requirement on the detection environment is very high, and the special instrument is not suitable for debugging and overhauling field equipment.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the load state of a lead screw transmission mechanism, and solves the problems of high detection cost and long detection period in the prior art.
The invention is realized by the following technical scheme:
a method for detecting the load state of a lead screw transmission mechanism comprises the following steps:
s1, connecting one end of the screw rod with a connecting piece, and connecting the other end of the connecting piece with a driving device with a torsion meter;
and S2, driving the connecting piece to rotate through the driving device, driving the lead screw to rotate through the connecting piece, displaying a numerical value through the transmission moment of force by the driving device, acquiring a moment value through the torsion meter, comparing multipoint measurement data with equipment control parameters, and finding out a fault point by taking the position with an abnormal data value as an accurate position of the fault point.
Further, the method for acquiring the torque value comprises the following steps: and selecting a plurality of measuring points on the screw rod, sequentially measuring the plurality of measuring points from one end to the other end of the screw rod, and recording data.
Further, when the screw rod is vertically installed, the plurality of measuring points are sequentially measured in the reverse direction from the other end of the screw rod, and data recording is performed.
Further, the obtained multipoint measurement data is subjected to drawing analysis and is compared with corresponding lines of an upper limit value and a lower limit value of a set value.
The invention also discloses a detection device, which comprises a connecting piece and a driving device, wherein one end of the connecting piece is provided with a connecting hole, and the other end of the connecting piece is preprocessed to be a connecting end; the connecting hole is connected with one end of the screw rod, and the connecting end is connected with the driving device.
Further, the inner diameter of the connecting hole is matched with the diameter of the end of the lead screw.
Furthermore, a knock pin is arranged at the connecting hole and used for locking the screw rod and the connecting piece.
Further, the connecting end is preprocessed to be in an outer hexagon shape.
Further, the connecting member is made of steel.
Furthermore, the driving device adopts a pointer type torque wrench
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a method for detecting the load state of a screw transmission mechanism, which adopts a driving device to drive a special connecting piece for measurement, can visually find out the change of a moment value through a torque meter, carries out drawing analysis on multi-point measurement data, and compares the multi-point measurement data with equipment control parameters, thereby quickly and accurately finding out a fault point. The special tool design and troubleshooting thought can be used for debugging, overhauling and measuring a transmission shaft of the numerical control equipment similar to the transmission working principle, and after the measurement numerical value is analyzed, overhauling and adjusting the transmission part of the shaft. The method has the advantages that detection is realized without depending on special software implementation of professional technical manufacturers, the predictability detection of transmission faults of the numerical control equipment is realized, the detection cost is greatly reduced, the detection period is shortened, reliable basis support can be provided for equipment technicians to master the equipment state, data accumulation is provided for equipment foreseen state management, the transmission shafts of the numerical control equipment similar to the transmission working principle of various types of numerical control equipment in the industry can be prevented, maintained and measured, the measured data is drawn into a curve graph for analysis, equipment state predictability maintenance can be effectively and timely carried out, the service life and the rule of equipment parts are gradually found out while the frequency of equipment faults is reduced. The economic benefit is very obvious, and the popularization value is very high.
The invention also discloses a detection device used by the detection method, which comprises a connecting piece and a pointer type torque wrench, and designs a special connecting piece, the structure of the special connecting piece is simple, the screw rod and the torque wrench are connected, the change of the torque value is visually seen through a torque meter of the torque wrench, the multipoint measurement data is subjected to drawing analysis and is compared with the equipment control parameters, and then the fault point can be quickly and accurately found out. The predictive detection of the transmission fault of the numerical control equipment is realized.
Drawings
FIG. 1 is a diagram of a detection device for load conditions;
fig. 2 data acquisition curve analysis diagram.
Wherein, 1 is a screw rod, 2 is a connecting piece, and 3 is a driving device.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention discloses a method for detecting the load state of a lead screw transmission mechanism, which comprises the following steps:
s1, connecting the connecting piece 2 at one end of the screw rod 1, and connecting the other end of the connecting piece 2 with the driving device 3 with the torsion meter;
s2, the driving device 3 drives the connecting piece 2 to rotate, the connecting piece 2 drives the screw rod 1 to rotate, the driving device 3 displays numerical values through the transmission torque, torque values are collected through a torque meter, multipoint measurement data and equipment control parameters are compared, the position with abnormal data values is the accurate position of a fault point, and the fault point is found out.
Specifically, a method of designing one end of a connecting piece 2 to be connected with a lead screw 1 and the other end of the connecting piece to be connected with a pointer type torque wrench is adopted to detect a stress change value of a shaft, and the stress change value is compared with control parameters of a numerical control system, so that a fault point is accurately judged.
The specific design and inspection method is as follows:
firstly, the diameter of the end of the screw rod 1 is measured, and a connecting hole at one end of the connecting piece 2 is connected with the screw rod 1 through a shaft.
Secondly, a knock pin is processed on the connecting hole, so that the connecting piece 2 and the lead screw 1 can completely hold the lead screw 1 tightly after being connected, and zero-clearance transmission is carried out.
And thirdly, the other end of the connecting piece 2 connected with the force measuring wrench is processed into an outer hexagon and is connected with the pointer type torque wrench through a standard inner hexagon sleeve.
The connector 2 is typically a cylindrical tube made of steel, although other shapes are possible and could be made using on-site scrap, saving cost.
The torque wrench is adopted to drive the special tool to carry out measurement, the change of the torque value can be visually seen through the torque meter, the multipoint measurement data is subjected to drawing analysis and is compared with the equipment control parameters, and then the fault point can be quickly and accurately found out. The special tool design and troubleshooting thought can be used for debugging, overhauling and measuring a transmission shaft of the numerical control equipment similar to the transmission working principle, and after the measurement numerical value is analyzed, overhauling and adjusting the transmission part of the shaft.
The connecting part of the servo motor and the transmission screw rod 1 is separated, the shaft diameter of the end of the screw rod 1 is measured, and a special connecting device, namely a connecting piece 2 is designed and manufactured according to the size of the shaft diameter. With lead screw 1 and 2 left end female connections of connecting piece, locking device through the design is connected connecting piece 2 and 1 tight fittings of lead screw, then chooses suitable pointer type torque wrench to be connected with connecting piece 2 right-hand members for use, and the right-hand member is outer hexagonal interface formula, can directly connect through box spanner (as shown in fig. 1). Then the torque wrench is moved by hand to drive the screw rod 1 to transmit through the connecting piece 2, the pointer of the torque wrench displays numerical values through the transmission moment, the data acquisition method comprises the steps of selecting a plurality of measuring points from the far end to the near end, recording data, then measuring the selected measuring points again from the near end to the far end, measuring once again, recording the data, finally carrying out comparison analysis with the control parameters of the equipment, determining the abnormal part of the data value as the accurate position of the fault point, and then repairing and adjusting the part.
For example: a transmission lead screw installed on a certain numerical control machine tool needs to detect the load state of the lead screw, and the detection method comprises two methods, namely vertical installation detection and horizontal installation detection of the lead screw, and comprises the following steps:
(1) the vertical installation detection method of the lead screw comprises the following steps: a, B, C, D and E five measuring points are sequentially and averagely selected on the screw rod from top to bottom, a torque wrench with a measuring function is adopted to drive the screw rod to move, and when the screw rod moves from the uppermost end to the point A, the transmission torque value of the screw rod is measured to be 23 N.m; when the screw is continuously moved to the point B along the same direction, the transmission torque value of the screw is measured to be 26 N.m; when the screw is continuously moved to the point C along the same direction, the transmission torque value of the screw is measured to be 25 N.m; when the screw is continuously moved to the point D along the same direction, the transmission torque value of the screw is measured to be 40 N.m; when the screw is continuously moved to the point E along the same direction, the measured transmission torque value of the screw is 22N m, and the measured data is recorded; measuring again from bottom to top according to the steps, and measuring the screw transmission torque value to be 23.1 N.m at the point E; when the screw rod continues to move upwards to the point D, the transmission torque value of the screw rod is measured to be 42 N.m; when the screw rod continues to move upwards to the point C, the transmission torque value of the screw rod is measured to be 26.25 N.m; when the screw rod continues to move upwards to the point B, the transmission torque value of the screw rod is measured to be 27.3 N.m; when the screw rod continues to move upwards to the point A, the transmission torque value of the screw rod is measured to be 24.15 N.m; the measured data value is 0.05 times larger than the upper value and the lower value, because the spindle of the machine tool is driven to move when the screw rod moves vertically, the load force of the screw rod is reduced by the self weight of the spindle when the screw rod moves from top to bottom, otherwise, the self weight of the spindle is required to be borne by the screw rod when the screw rod moves from bottom to top, the load value of the screw rod is increased, the counter weight device is installed on the spindle of the special numerical control machine tool, the self weight of the spindle can be ignored by the machine tool. Comparing the measured data with the control parameter value of the numerical control system, setting the upper limit value and the lower limit value of the screw load by referring to the numerical control system parameter, namely setting a line as the lower limit value of the control parameter setting value of the numerical control system, and setting a line as the upper limit value of the control parameter setting value of the numerical control system, wherein the transmission torque is between 21 N.m and 28 N.m and is a normal range value of the device, and comparing the values with the measured values of the torque force of A, B, C, D, E at five points.
(2) The horizontal installation detection method of the lead screw comprises the following steps: the steps of the horizontal detection method of the screw are the same as those of the vertical detection method, A, B, C, D and E five measurement points are sequentially and averagely selected from left to right on the screw, the change of data acquired by the measurement point position and the torsion value can be seen, the screw is driven to move by adopting a torque wrench with measurement, and when the screw moves from the leftmost end to the point A, the transmission torque value of the screw is 23 N.m; when the screw is continuously moved to the point B along the same direction, the transmission torque value of the screw is measured to be 26 N.m; when the screw is continuously moved to the point C along the same direction, the transmission torque value of the screw is measured to be 25 N.m; when the screw is continuously moved to the point D along the same direction, the transmission torque value of the screw is measured to be 40 N.m; when the screw rod continuously moves to the point E along the same direction, the transmission torque value of the screw rod is measured to be 22 N.m, after the measured data is recorded, the measured data is measured again from right to left according to the steps, the measured values of the two times are matched, the measured data is compared with the control parameter value of the numerical control system, the upper limit value and the lower limit value of the load of the screw rod are set according to the parameters of the numerical control system, namely, a line is the lower limit value of the set value of the control parameter of the numerical control system, a line is the upper limit value of the set value of the control parameter of the numerical control system, the transmission torque value ranges from 21 N.m to 28 N.m and is the normal range value of the equipment, and the transmission torque value is compared with the measured values of the torque values of A, B, C, D, E at five points, as shown in figure 2, the torque value at the point D.
Claims (10)
1. A method for detecting the load state of a lead screw transmission mechanism is characterized by comprising the following steps:
s1, connecting a connecting piece (2) at one end of the screw rod (1), and connecting the other end of the connecting piece (2) with a driving device (3) with a torsion meter;
s2, the connecting piece (2) is driven to rotate through the driving device (3), the connecting piece (2) drives the screw rod (1) to rotate, the driving device (3) displays numerical values through the transmission torque, torque values are collected through a torque meter, multipoint measurement data and equipment control parameters are compared, the position with abnormal data values is the accurate position of a fault point, and the fault point is found out.
2. The method for detecting the load state of the screw transmission mechanism according to claim 1, wherein the method for acquiring the torque value comprises the following steps: a plurality of measuring points are selected on the screw rod (1), and the plurality of measuring points are measured in sequence from one end to the other end of the screw rod (1) and data recording is carried out.
3. A method for detecting a load state of a lead screw drive according to claim 2, characterized in that when the lead screw (1) is vertically installed, the plurality of measuring points are sequentially measured in reverse from the other end of the lead screw (1) and data recording is performed.
4. The method according to claim 1, wherein the obtained multipoint measurement data is subjected to a graphic analysis and compared with a line corresponding to the upper limit value and the lower limit value of the set value.
5. A detection device is characterized by comprising a connecting piece (2) and a driving device (3), wherein one end of the connecting piece (2) is provided with a connecting hole, and the other end of the connecting piece is preprocessed to form a connecting end; the connecting hole is connected with one end of the screw rod (1), and the connecting end is connected with the driving device (3).
6. The detection device according to claim 5, characterized in that the inner diameter of the connection hole matches the diameter of the end of the threaded spindle (1).
7. A testing device according to claim 5, characterized in that a knock pin is provided at the opening connection hole for locking the screw (1) and the connecting piece (2).
8. A test device as claimed in claim 5, wherein the connecting end is pre-machined to an external hexagonal shape.
9. A testing device according to claim 5, characterized in that the connecting piece (2) is made of steel.
10. A detection device according to claim 5, characterized in that the drive means (3) is a pointer type torque wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110287675.9A CN113029562B (en) | 2021-03-17 | 2021-03-17 | Detection method and detection device for load state of screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110287675.9A CN113029562B (en) | 2021-03-17 | 2021-03-17 | Detection method and detection device for load state of screw transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113029562A true CN113029562A (en) | 2021-06-25 |
| CN113029562B CN113029562B (en) | 2024-07-23 |
Family
ID=76471314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110287675.9A Active CN113029562B (en) | 2021-03-17 | 2021-03-17 | Detection method and detection device for load state of screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113029562B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086898A (en) * | 1992-11-09 | 1994-05-18 | 兰州工业高等专科学校 | Metre for guide screw |
| JPH08110277A (en) * | 1994-10-13 | 1996-04-30 | Tonichi Seisakusho:Kk | Torque wrench tester |
| CN203837852U (en) * | 2014-05-19 | 2014-09-17 | 江苏万达特种轴承有限公司 | Direct-reading type torque detection device |
| CN105157979A (en) * | 2015-09-07 | 2015-12-16 | 南京工艺装备制造有限公司 | Method for detecting ball screw pair assembling quality |
| CN106500907A (en) * | 2016-09-30 | 2017-03-15 | 浙江省计量科学研究院 | A kind of torque spanner calibrating instrument with equilibrant force position compensation and its compensation method |
| CN106662494A (en) * | 2014-06-30 | 2017-05-10 | 罗伯特·博世有限公司 | Testing device for testing screw systems, and testing method for this purpose |
| CN107515117A (en) * | 2017-09-25 | 2017-12-26 | 山东博特精工股份有限公司 | Lead screw pair transmission efficiency precision measurement apparatus and measuring method |
| CN108535598A (en) * | 2018-04-13 | 2018-09-14 | 北京全路通信信号研究设计院集团有限公司 | Online detection method and device for cable fault of track circuit |
| CN109100139A (en) * | 2018-08-25 | 2018-12-28 | 南京理工大学 | A kind of lead screw pair transmission efficiency dynamic measurement device and its measurement method |
| CN110672318A (en) * | 2019-09-20 | 2020-01-10 | 南京理工大学 | Device and method for measuring transmission efficiency of ball screw pair based on power driving system |
-
2021
- 2021-03-17 CN CN202110287675.9A patent/CN113029562B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086898A (en) * | 1992-11-09 | 1994-05-18 | 兰州工业高等专科学校 | Metre for guide screw |
| JPH08110277A (en) * | 1994-10-13 | 1996-04-30 | Tonichi Seisakusho:Kk | Torque wrench tester |
| CN203837852U (en) * | 2014-05-19 | 2014-09-17 | 江苏万达特种轴承有限公司 | Direct-reading type torque detection device |
| CN106662494A (en) * | 2014-06-30 | 2017-05-10 | 罗伯特·博世有限公司 | Testing device for testing screw systems, and testing method for this purpose |
| CN105157979A (en) * | 2015-09-07 | 2015-12-16 | 南京工艺装备制造有限公司 | Method for detecting ball screw pair assembling quality |
| CN106500907A (en) * | 2016-09-30 | 2017-03-15 | 浙江省计量科学研究院 | A kind of torque spanner calibrating instrument with equilibrant force position compensation and its compensation method |
| CN107515117A (en) * | 2017-09-25 | 2017-12-26 | 山东博特精工股份有限公司 | Lead screw pair transmission efficiency precision measurement apparatus and measuring method |
| CN108535598A (en) * | 2018-04-13 | 2018-09-14 | 北京全路通信信号研究设计院集团有限公司 | Online detection method and device for cable fault of track circuit |
| CN109100139A (en) * | 2018-08-25 | 2018-12-28 | 南京理工大学 | A kind of lead screw pair transmission efficiency dynamic measurement device and its measurement method |
| CN110672318A (en) * | 2019-09-20 | 2020-01-10 | 南京理工大学 | Device and method for measuring transmission efficiency of ball screw pair based on power driving system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113029562B (en) | 2024-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104374569A (en) | RV reducer transmission feature test system | |
| US20200311321A1 (en) | Method for determining real-time thermal deformation attitude of spindle | |
| CN107991095A (en) | The life test apparatus and method of robot precision cycloid decelerator | |
| CN110763322A (en) | Combined type calibrating device of electronic hanging scale | |
| CN112729789A (en) | Method for formulating and evaluating tightening process of plastic region of key bolt of engine | |
| CN111351659B (en) | Universal transmission device tension-torsion composite reliability test bed and test method | |
| CN101929830B (en) | Method for measuring gap between bearings of roll shafts of pinch rolls | |
| CN202420986U (en) | Test device for extending property of wire harness | |
| CN110207916B (en) | Subway center pin bolt vibration acceleration test method and device | |
| CN113029562B (en) | Detection method and detection device for load state of screw transmission mechanism | |
| CN211503932U (en) | Utensil is examined in bevel gear forging tooth thickness on-line measuring | |
| GB2488696A (en) | On-line detecting device with force feedback of internal thread cutting machine tool of oil pipe connecting hoop | |
| CN108225250B (en) | Center distance gauge | |
| CN110864651A (en) | Differential mechanism shell quality detection equipment | |
| CN113739667B (en) | Detection tool and detection method for turbocharger middle shell | |
| CN210220920U (en) | Flexible internal thread detection equipment | |
| CN211876970U (en) | Ball screw clearance measuring device | |
| CN208254517U (en) | The detection device of cold rolling mill oil cylinder position sensor | |
| CN104316314B (en) | Bearing pin side-by-side size sensor transformational structure | |
| CN108225754B (en) | Testing device for checking accuracy of pulling and pressing test frame of petroleum downhole tool | |
| CN208833481U (en) | Determine the pilot system of fastening arrangement and method for construction | |
| CN220322604U (en) | Dynamic torque calibration device of internal rotation rolling connection equipment of flares-free pipeline | |
| CN205373618U (en) | High accuracy automated inspection examines excellent axiality and beats detector | |
| CN220472865U (en) | Dual-seat dual-purpose pressure gauge inspection device | |
| CN113804346A (en) | Threaded connection tightening torque coefficient detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |